Index: modules/taxonomy/taxonomy.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/taxonomy/taxonomy.module,v
retrieving revision 1.330.2.15
diff -u -F^f -r1.330.2.15 taxonomy.module
--- modules/taxonomy/taxonomy.module	20 Dec 2007 07:48:11 -0000	1.330.2.15
+++ modules/taxonomy/taxonomy.module	29 Jan 2008 02:35:36 -0000
@@ -1182,7 +1182,7 @@ function _taxonomy_term_select($title, $
   $options = array();
 
   if ($blank) {
-    $options[''] = $blank;
+    $options[] = $blank;
   }
   if ($tree) {
     foreach ($tree as $term) {